How Much Cellulose In Attic

If you need to add insulation in your attic save big by blowing in cellulose insulation yourself.

How much cellulose in attic.

Department of energy it s recommended that attics have an r 38 to r 49 or about 12 to 15 of fiberglass or cellulose insulation. 1 20 1 25 per square foot for loose fill cellulose blown into an attic 1 50 per square foot for loose fill cellulose installed in finished walls for most exterior walls experts recommend an r value of r 13 to r 24. This could leave gaps in a wall as the insulation compacts vertically or it could leave space between a floor and the insulation beneath it. How much does attic insulation cost.

Blown in cellulose is often more expensive than fiberglass and costs about 1 20 per square foot. Blowing attic insulation isn t hard but it s dusty sweaty work. Fiberglass and cellulose insulation have r values of 2 9 to 3 8 per inch while sprayed foam insulation can go as high as 8 0 per inch. The average cost to add cellulose blown insulation in your attic and achieve an r50 value is about 0 40 cents sqft using 2 bags for 10 of insulation installed yourself.

The average cost of blown in insulation to achieve an r value of r 38 r 49 is 1 665 with most homeowners spending between 874 and 2 156 or 1 59 per square foot. When you need to add insulation to an attic crawl space or walls of a home the fastest and most cost efficient method is to use blown in insulation. Loose fill cellulose insulation can settle around and conform to most of the obstructions found in walls and attics. If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs.

It is made with recycled materials like newspaper and cardboard. The cost is around 0 60 cents sqft when hiring a insulation company near you to do the job. The pros charge 1 500 to 2 000 to do a 1 200 sq ft. When walls are already finished injecting loose fill cellulose insulation is one of the few ways of adding.

The cellulose insulation cost per bag is typically around 30 to 40. According to the u s. For loose fill cellulose this translates to a total depth ranging from 8 inches. Cellulose insulation can settle by as much as 20 percent depending on how it is installed.

Because the space inside a wall is filled almost completely with insulation the r values can be lower than in attics which. Loose fill cellulose is relatively inexpensive yet still has an r value of about 3 5 per inch of thickness compared to fiberglass r value between r3 to r4 per inch. In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended.